Grain-separator.



H. F. HUTTON. GRAIN SEPARATOB. APPLIGATION FILED JULY a1. 1913.

Patented June 2, 19M

2 SHEETS-433KB! 1.

I Attorneys,

Witnesse H. P. HUTTON- GRAIN SEPARATOB. APPLICATION FILED 317113}, 1913.

Patented June 2, 1914.

2 BBEETHKBBT 2.

Witnesses lnvento r,

Attorneys a specification.

to" view which will appear as the proceeds, the invention resides in o ratltn ot the rear end of a m meshes and the straw blast mach direction at a travel th Henna. r. sorrow; or ant-rats, Montana.

o-nantsnrnnaron ll tl hl not...

specification at Letters irritant. Application and July er, 191a.

Patented done 2, this Eierial no. mean.

, To ellwhomt't mayv concern; 4

BB it known that Home ltlldp'rron, a citizen of the United States, residin at J'eders, in the county ot-adison' and gtate g5, oi Montannhaveinrented a new and useful Grain-Separator,- otlwhich the'tollowing is The present inventioniinelates to improvements in grain separators, particularly to a structure somewhat similar tothat set forth 1n applicants 'lPatent no 1,019,962 granted- March 23, :1912, and "therefore relating more particularly to the separation of the grain from, the straw before the same is delivered t through the fan of the pneumatic stacker mechanism of a threshing machine, the present invention being readily applied. to the.

'usual form of threshing machines or to a modified form, in which the intermediate to cleaning and separating. mechanism is dis pensed with.

The inain ebject ct is the .provisinnot means which wllllnsure theseparationof the grain lroni the straw 2t and chad" while" the tan drum, the grain precipitated. in- 1 the bottom thereof being ""moved in an opposite direction to the a r blast and. final1y cloiivered through an annuiary separating chamber where the resi dual so chad isiturther removed and. thegram 1s perniitteclgtp fall by avityr J A fnrtheiifobject o the present invent on a is the provisiiinof amechanism of this-cha actor, which will economically handle the t5 straw before it leaves the pneumatic stacker,

and which willsecare the maximum amount of: grain usually carried away from the threshing machine with such straw.

,"With the foregoing and other objects in description the combination ahdtarrangement of parts and in the details of 'construction hereinafter described and claiined, it being understood that 5 changes in the'precise embodiment of the invention herein disclosed can be made within the scope of what is claimed without-departing from the spirit at the-invention.-

in the drawings ltigure l is e side eleaching tha :c withlthe present invention applied thereto. Fig. 2 is a vertical sections riew thronthe inain blast tan chamber showing the position at s grain deliv a arrows indicating the the present invention "plish this,

grain sepa nism having means for delivering tlie straw into the main blast chamber.

Referring to the drawings,'the numeral 1 designates the main fan chamber of the pneumatic stacker, with the blast fan 3 mountedupon the shaft t. The fan chamber is so constructed as to have the lip 5 produce a slightly constricted opening-leading into the outlet portion adjacent the partition 6, 'which 'terminates, at a point slightly above the upper ends of the slats 10, as clearly shown in Figs. 2 and t, the purpose oi? which will presently appear.

The fan chamber 1 isrprovided With the' the same being provided usual admission opening 2, for the straw from the threshing machine T, and as par ticularlv-shown in Fig. '1.

The bottom -7. of with the transverse slot 8 in one portion, and with a transverse slot 9 at a polnt adjacent or slightly below the upper edge of-the partition 6, the purpose of which will presently appear. Eilats 10 are disposed to parallel the bottom 7 from a point slightly above the slot 9 to a point beyond the slot 8, as illustrated in Fig. 2, and provides a means to permit of the separation of the grain from the straw and chali" due to the centrifugal action imv parted thereto by the blast fan 3. By this means the centrifugal force imparted by the fan will cause the grain to be forced through the spaces between the slats 10 and. upon the bottom 7 of the fan casin It has been found essential that some means he provided for removing the pre cipitated grain resting upon the bottom '7,

and that such removal must be in the direction in opposition W to the direction of the blast 'from the fan 3. in order to accoma drive shaft 11 is journaled adiaccnt to the slot 8 and is driven by the policy lit from any mechanism connected with the mpower at the threshing machine. lt roller it is niounted'upon the shaft 11 within the slot it and has threaded the-rector, c groin-elevator or conveyor It at a chain the casing is provided tit? Mid

' and slat type, and as particularly shown in detail in Fig. 5. A casing 15 is disposed below the bottom 7 of the main casing and extends from a point beyond the slot 8, and terminates in the auxiliary separating casing 17, The conveyer 14, as before stated, is trained over the rollers orsprockets-IS, passing through the chamber 15 and over the idlers 16, to the large sprocket 18 within the auxiliary casing 17, and inclines upwardly over the idlers 19 which are-journaled adjacent to the slot 9. From thence the chain passes below the slats 10 and in parallel to the curved portion 7 of-the fan casing so that any of the grain that is forced through the slats will enter the spaces between'the scraping blades 32 carried by the lugs 31 of the chains 'of the endless conveyer 14. These slats or strips 32 are inclined, as clearly shown in Fig. 2, so that the tendency of the blast from the fan 3 will .be to drive grain into the acute angle pocket formed by the edge of each slat 32 and the adjacent portion of the bottom 7 of the fan casing. By this means, the grain will be properly delivered toward the slot 8,. and finally through the casing 15 into the auxiliary hopper or casing 17.

The grain being heavier than the chaff or short pieces of. straw that are carried by the endless conveyer will fallv through the slat work 22 into the guiding hopper 20, which is provided with the reduced outlet 21. In order to provide a means for removing any chafi or short straw from the grain as the same enters the auxiliary casing 17, an opening 23 is provided in one wall of the casing 17, and in line with the upper portion or strand of the conveyer, as clearly illustrated in Fig.2. Led from this opening 23, is a conduit 24, which is in communication with the central opening 25 of the suction fan casing 26. In this casing 26 upon the shaft 4, which is a common shaft for the fan 3, is the suction fan 27 thus providing a means whereby both fans are operated through the same mechanism. The suction casing 26' and the fan 27 is of less area than the blast fan v casing 2, inasmuchas-th'e amount of material removed through'thej'opening 23 is exceedingly small, in comparison to the amount that is carried into themainstack 29 by means of the. blast fan 3. The outlet stack 28 ofthe suction fan casing 26 is parallel with the. partition 6, as clearly illustrated in Fig. 4, and leads into the common outlet conduit 29 .of the stacker.

By this means, it will be seen that the fan 3 actsupon the. straw within the casing to cause the grain to be separated therefrom and. be precipitated between the slats l0. and the transverse slats or strips 32 of the moving conveyer 14, such strips as before stated, beingso positioned as to provide pockets for the reception of the grain whlch is forced inorefirmly into the pockets instead of havmg a tendency to be driven up into the stack 29. Thus the grain is properly delivered nto the casing 15 and finally into the auxiliary casing 1 7, any remaining straw or chaff beingdrawn through the conduit 24 into the suction chamber 26 to be finally delivered into the common stack 29.

It is evident that the present device may be used in connection with the ordinary form of threshing machine, in which a pneumatic stacker is employed, it being particularly designed to secure the maximum amount of grain from the straw previous to its final delivery from the stacking conduit 29. It is also apparent that the present separatormay be readily attached to a straw feeding means of 'a-spiral type, as illustrated in aco-pending application filed even date herewith, Serial No. 782340, and as herein,

the usual straw and grain separating means shaft 4 which carries the spiral member 34,

to insure the feeding of the straw into the fan chamber regardless of the angular position of the fan chamber to the threshing machine. By this construction, the fan .chamber may be placed in a higher position from the ground than is customary with the usual threshing machines, in which the straw is fed by gravity into the fan. chamber and in which when the straw is wet or damp, has agreat tendency to clog.

What-is claimed is:- I a 1. A grain separator, having a main fan casing for receiving the straw to be stacked,

.means mounted therein and operating in an opposite'direction to the blast from the fan to convey the grain precipitated by the blastv -110 and the centrifugal action imparted thereto by the fan, means for receiving the separated Y grain, an auxiliary means for removing the chaff and finer particles from the separated grain, and a common stack leading from the latter means and the main fan casing.

2. A grainseparator, having a main fan casing for receiving the straw to bestack'ed, means mounted therein and operating in an oppo'sitedirection to the blast from the fan to convey grain precipitated by the blast and the centrifugal action imparted thereto by the fan, means for receiving the separated grain, a'suction fan casing in communication with the grain separating means for removing the chaff and finer particles from the grain, and a stack common to casing .and the suction fan 0: nng for receiving the straw and chafi'.

3. A; grai'n' separator, comprising amam .e main fan 7 Q veyer passes,

blast suction fan and an auxiliary suction fan casing juxtaposed, ;a fan mounted in each casing, a common; shaft for both fans, an, endlessrcham conveyor disposed within 5 theg'mainfan casm for receivlng the grain separated due to I blast and the centrifngal action imparted thereto by the main. fan, an auxiliary casing for receiving the grain and through-which the endless conand a conduit leading from said casing to the suctionfan casing whereby the chaff and finer particles are removed from thcefinally separated grain.

- 4. Agrain separator, comprising a main blast fan and an auxiliary suction fan casing juxtaposed, a fan mounted in each casm le s chain conveyer disposed within the main fan casing forreceiving the grain separated due to the-blast and centrifugal action imparted thereto bythemain fan, an auxiliar casin for receiving the grain and throng v whic the endless conveyer passes, a conduit fan casing .for receiving the grain separated due to'the blast and centrifugal action imparted thereto by the main fan, an auxilia casing for receiving the grain and throng which the endless conveyor passes,

leading from said casin a common shaft for both fans, an end posed exteriorly of the bottom of the main to the-suction fan.

posed slats,

.a conduit to the suction fan casing whereby the cha -and finer particles are removed from grain, a, conduit leading into the inlet of the main fan casin one end of the shaftcarrying the fan bemg projected thereinto, and a straw feeding member carried upon the end of .said shaft within the conduit and operable simultaneously withboth fans.

6. A grain separator, having a main fan casing for receiving the straw to be stacked, an auxiliary casing disposed adjacent to the main fan caslng and having a grain outlet and air suction inlet, an endless grain conveyer disposed for passage adjacent the bottom of the main fan casing upon each side thereof and through the auxiliary casa casing for the endless conveyer disfan casing and to the'adjacent portion of the auxiliary casing, and means for creating a current of a1r through the auxiliary casing,- said endless conveyer being composed of a plurality of chains, and transversely dis-- said slats being disposed to coact with the. adjacent portion of the bottom of the fan casing and provide angular shaped pockets for the grain, and means for operating the chains in a direction opposite to the blast.

In testimony that I claim the foregoing as my own, 'I have hereto afiixe'd my signature in the presenceof two witnesses.

} HOMER F.HUTTON.

copies-ct this patent may be obtained to: 1!." cents each, by addressing the Commissioner of Patents,

-' Washington, I). 0.

the finally separated 

